Surgical splint for the arm



Ma 1932- K. G. F. COLLENDER 1,860,995

SURGICAL SPLTNT FOR THE ARM Filed April 1929 INVEN TOR ffs'usE GORDON FFYNER COLLENDER BY W Patented May 31, 1932 UNITED STATES PATENT KELSEY Gonnon FFYNEB COLLENDER, or .ronann'nsnone; rnANsvimL, UNION or I SOUTH AFRICA SURGICAL SPLIN'I' FOR THE ARM Application filed April 30, 1929, Serial No. 359,254, and in Great Britain March 14, 1927.

The present invention relates to Thomas type surgical splints for setting a patients arm in the tumbler position. As now commonly used such a splint is a single rigid 5 piece of apparatus and a number of splints of different sizes have to be kept at hand or specially made to suit different patients.

The object of the present invention is to provide a sectionalized tumbler position Thomas arm splint which can be readily built in any required size, from a stock of parts.

A splint constructed according to this invention is illustrated in the accompanying drawings in which:

Fig. I shows the complete splint.

Fig. II is a perspective detached view of its yoke, and v Fig. III shows a detail, enlarged.

0 The parts of the splint consist of the arm ring 2, the two side rods 19, and 22, and the yoke 4. The arm ring 2' providestwo sockets 5 arranged on a diameter of the ring, into which the side rods are disconnectibly 5 engaged in such a manner that they are rigid-. ly held except against rotational movement about the diameter. In the latter respect they are free to move. The slide rods and sockets may for this purpose conveniently be screwed 0 together as shown.

The yoke 4, shown detached in Fig. II, is roughly U-shaped with the cross bar 11 straight or curved inwards and also notched at 12, to retain an extension bandage or tapes. On the outer side of the limbs of the yoke are sets of notches 13 directed oppositely to each other to stop bandages from slipping in either direction.

The yoke and the side rods are preferably connected by slip-on joints, comprising sockets 14 fixed to the yoke and receiving the plain ends of the side rods. The end of the socket. is split at 15 and slightly compressed to grip the rod and the rod end is split at 16 and slightly spread. The extremity of the rod (shown enlarged in Fig. III) is coned at 17, and a conical shoulder 18 of difierent angle from the rod extremity is formed at the bottom of the socket, so that the rod takes up an annular bearing on the shoulder, thus minimizing lateral play at the joint.

Both the side rods are L-shaped. The rear side rodlS) has its threaded end 20 bent in the same direction as the horizontal portion 21. The threaded end 23 of the forward side rod 22 is directed oppositely to the horizontal portion 24. i

The side rod 22 is provided I ly directed notches 26. The side rod 19 has upwardly directed notches 27 at its upper end to prevent bandages from slipping down, downwardly directed notches 28 near to the elbow to facilitate traction from the elbow downward and backward, and on its horizontal limb notches 29 directed away from the yoke 4. This splint serves without change for either arm.

The ring, side rod, and yoke. are provided in various sizes but all having identical screwed and slip-0n joints, so that from a set of such unitsa splint may be built up to suit a patient of any bodily proportions.

Since no part of the splint is bent in more than one plane, a complete set of parts can be packed in a flat and readily portable tray or case.

I claim:

7 1. A tumbler position arm splint, comprising an arm ring, side rods detachably swivel jointed to the arm ring, both side rods being L-shaped, the inner side rod being shorter than the outer rod and having its end connecting to the ring bent parallel and oppositely to the foot of the L, the outer side rod having its, similar end bent parallel to and in the same direction as the foot of the L, and a yoke detachably connected to the side rods.

2. A side rod for a sectionalized arm splint comprising an L-shaped rod having one end threaded and directed parallel to the foot of Q with upwardi the L and the other end adapted to seat in a jointing socket.

3. In an arm splint, in combination, outer and inner L-shaped one-piece side rods havg. ing their upper ends oppositely inturned into parallelism with their foot portions, an arm ring to which said inturned ends of the side rods are swivelled, a yoke member, and detachable slip-on joint connections between v the ends of the oke and the lower ends of the respective si e rods. 7

In testimony whereof, I have signed my name to this specification.

KELSEY GORDON FFYNER COLLENDER. 

